120 results about "Protective lenses" patented technology

The electro-optic liquid level sensing system detects a level of liquid in a container having an upper opening, such as for a server container of a beverage maker for a transport system, such as for aircraft, trains, trucks, buses and the like. A support housing mates with the upper opening of the container, and a primary liquid level sensor is mounted in the support housing for non-intrusively measuring the liquid level. A secondary liquid level sensor may be mounted in the support housing to sense a predetermined liquid level to prevent accidental overflows. Protective lenses may be placed in front of the primary liquid level sensor.

The invention discloses a wafer level packaging method for an LED chip level white light source. A packaging method of inverted LEDs comprises the following steps: firstly transferring the chips onto a wafer substrate plate (film), then carrying out fluorescent powder coating on a wafer sheet with a method that film vacuum press is obtained through a die, and finally carrying out cutting on the wafer sheet to obtain single LED direct white light source chips with chip levels. A packaging method of positive LEDs comprises the following steps: firstly completing solid crystal and gold thread bonding technology on a wafer substrate upper sheet for LED chips, then forming a silica gel protective lens with a spot-coating method for each LED chip, then coating uniform fluorescent powder layers on the silica gel protective lenses with a film vacuum pressing method, and finally carrying out cutting on the wafer sheet to obtain single LED direct white light source chips with chip levels. The LED packaging efficiency is greatly improved, an LED white light chip with good space color uniformity and overall color temperature consistency is obtained, and the development and innovation of LED packaging technology are greatly promoted.

A modified cap for the attachment of eye protective lenses or modified sunglasses via retractable arms movable in several directions can provide quick placement of the sunglasses on the face. The sunglasses which do not need temples can be partially stowed under the cap's brim or in a recessed compartment in the cap's brim, either of which may have friction points or magnets set to keep the sunglasses from dropping down. The user can release the sunglasses to position them on the face where they can be held in place by the telescopic arms that extend/retract according to the required placement of the sunglasses determined by the differing head size and facial contours of the wearer. Certain embodiments, therefore, allow the fast placement and removal of sunglasses in an efficient manner by keeping them close to the user's face in a safe position when not in use.

A modified cap for the attachment of eye protective lenses or modified sunglasses via retractable arms movable in several directions can provide quick placement of the sunglasses on the face. The sunglasses which do not need temples can be partially stowed under the cap's brim or in a recessed compartment in the cap's brim, either of which may have friction points or magnets set to keep the sunglasses from dropping down. The user can release the sunglasses to position them on the face where they can be held in place by the telescopic arms that extend/retract according to the required placement of the sunglasses determined by the differing head size and facial contours of the wearer. Certain embodiments, therefore, allow the fast placement and removal of sunglasses in an efficient manner by keeping them close to the user's face in a safe position when not in use.

The present invention improves existing eyewear frames to provide a secure and convenient means for storage and transport of eyewear when it is not being worn on the face. The invention removes any need for a case or container for the eyewear. The eyewear frames contain lenses, which may be, for example, prescription lenses, reading lenses, darkened lenses as in sunglasses, protective lenses, or a military lens such as night-vision goggles. When not in use as eyeglasses, the frames can be folded into a band for the wrist, arm or ankle. An optional reminder pad may be attached to the eyewear frames for the person using the frames to write short reminders to him- or herself. The reminder pad may be made of paper, of washable plastic, or of any other suitable writing surface material.

A protective base lens configured for attachment to the visor or face shield of a helmet upon which protective tear-away lenses may be mounted. The protective base lens includes an elongated flexible clear transparent sheet with apertures at each end with post member fasteners being reversibly secured within the apertures. A pressure sensitive adhesive is affixed to the bottom surface at each end of the transparent sheet to attach the protective base lens to the helmet visor. One or more tear-away lenses operationally engage the post member fasteners and are reversibly mounted to the top surface of the transparent sheet. The protective base lens being designed and configured to be used with or without tear-away protective lenses.

The invention discloses an improved safety helmet for building construction. The improved safety helmet includes a bottom frame, an inner shell layer, a gas-filled layer and an outer shell layer. Theupper end of the bottom frame is provided with the inner shell layer, and the outer shell layer is disposed on the outer side of the inner shell layer. A buffer chamber is disposed between the inner shell layer and the outer shell layer. A solar power generation layer is arranged on the outer side of the outer shell layer. The outer shell layer at the front end of the safety helmet is provided with a telescopic rod, the tail end of the telescopic rod is provided with a lighting lamp, a hinge is disposed between the lighting lamp and the telescopic rod, the front end of the bottom frame on thelower side of the lighting lamp is provided with a cap brim, the lower end face of the cap brim is connected with protective lenses through hinged bases, the inner side of the inner shell layer is provided with the gas-filled layer, massage pads are evenly distributed on the inner side surface of the gas-filled layer, the gas-filled layer located at the tail of the safety helmet is provided with an inflating pipe, the inflating pipe penetrates the inner shell layer, the outer shell layer and the solar power generation layer and is connected with an air pump, and the inflating pipe located in abuffer layer is provided with a solenoid valve. The improved safety helmet is simple and reasonable in structure, adjustability of a safety helmet inner cavity is achieved, and the practicality of adevice is improved.

The invention discloses demisting goggles. The glasses comprise protective glasses frames, lenses and fixing bands, and two-way micro motors are fixedly mounted on the inner walls of the upper cornersof the two sides of the protective glasses frame respectively; demisting brushes are respectively arranged on rotating shafts of the two-way micro motors, the fixed ends of the demisting brushes arefixedly connected with the rotating shafts, the free ends of the demisting brushes are parallel to the mirror surface of the lens and extend along the mirror surface, scrapers fixed on the demisting brushes are in contact with the inner side of the lens, and a control box is arranged on the two-way micro motors. The pair of demisting goggles is worn on the head of a medical worker; medical staff can be protected from being infected due to contact between eyes and external germs; and the medical staff can remove fog water generated on the inner sides of lenses of the goggles at regular time bythe scraping pieces on the demisting brushes without taking down the goggles, clear sight is obtained through the transparent lenses, fine operation is carried out, accidental injury accidents are avoided, and the infection probability of the medical staff is greatly reduced.

Wind screen type protective eyewear comprises a frame and a transparent lens in the frame. The protective eyewear is characterized in that an air outlet surrounding the lens is formed in the front of the lens, the lower edge of the air outlet is flush with the lens surface, the air outlet direction of the air outlet is parallel to the lens surface, and the air outlet is communicated with an air source through an air channel. According to the protective eyewear, the air outlet is formed on the periphery of the lens, the lower edge of the air outlet is flush with the lens surface, the air outlet direction of the air outlet is parallel to the lens surface, all outlet air is attached to the lens to be blown oppositely towards the center, and air flows in all directions are converged finally to form an air column which is perpendicularly outward from the lens, so that dust falling on the lens can be removed, and dust or other particle atomization substances can be blocked outside the lens and cannot contact with the lens.

The invention provides a pair of medical protective glasses, which relates to the field of a medical instrument. The pair of medical protective glasses comprises a pair of glasses and a face shield detachably connected to the glasses. The pair of glasses is composed of a frame and lenses, wherein each lens includes a transparent thin sheet at least covering eyes. The pair of glasses is worn through a holding component fixed on the frame and is fixed right ahead of eyes. The face shield is made from a hard elastic material and includes a transparent thin sheet covering the whole face. On the face shield, a connection component detachably connected to the pair of glasses is arranged at a position corresponding to an area out of a visual range of the glasses. The pair of medical protective glasses is adopted for protection of operations or routine medical works. The pair of medical protective glasses is simple in structure and convenient to wear, is time-saving and labor-saving, is comfortable to wear and of anti-fog performance.

The invention provides a fire-fighting unmanned aerial vehicle lens cleaning device capable of preventing smoking based on magnetic force change. The fire-fighting unmanned aerial vehicle lens cleaning device comprises a lens barrel body, wherein a sliding groove is formed in the inner part of the lens barrel body and is positioned on the outer side of a protective lens; a sliding seat is movablyconnected to the inner part of the sliding groove and is positioned above a storage seat; cleaning cotton is arranged between the sliding seat and the storage seat; a heat conducting rod extending into an air cavity is fixedly inserted into the front surface of the lens barrel body; uniformly distributed conducting strips are fixedly arranged on the left side of the sliding groove; and electromagnets corresponding to the conducting strips are fixedly arranged at the bottom of the sliding groove. The closer an unmanned aerial vehicle is to a fire area, the higher the air temperature is, heat istransmitted into the air cavity through the heat conducting rod, the inner pressure of the air cavity is increased to a certain degree and then ejects a valve, the air flow pushes the sliding seat torotate along the sliding groove, power is provided through the conducting strips and the electromagnets, the sliding seat pulls the cleaning cotton to wipe and clean the protective lens, and the problem that the protective lens of a camera on the unmanned aerial vehicle is smoked and blurred is avoided.

The invention discloses a laser machining cover which comprises a metal cover and a plurality of eye protective lenses. The metal cover is in the shape of a hollow hemisphere, a circular hole used for fixing a laser head is formed in the middle of the metal cover, and a plurality of visible windows are arranged on the side walls of the metal cover; the eye protective lenses are fixed onto the visible windows in the metal cover. The laser machining cover has the advantages that visual fields are bright owing to the laser machining cover, the transmittance of the lenses on the visible windows for laser beams with the wavelengths of 1064nm can reach 10-7 magnitude and is lower than a safety protection threshold value for human eyes, and accordingly the human eyes can be effectively protected; the laser machining cover is simple in manufacturing process, and the production cost can be greatly reduced.

The invention discloses a multipurpose mine dustproof device. According to the device, a pair of protective glasses and a nose mask are fixedly connected into a whole. The protective glasses are connected with the nose mask through fastening belts, length adjusting buckles are arranged on the fastening belts on two sides, and spring bolts and locker are arranged at two ends of the fastening beltsrespectively. A nose clip I for clamping a nose bridge is further arranged on the nose mask, exhaust holes are formed in a lower portion of the nose mask, filtering devices communicating with air inlet holes and one-way valves connected with the exhaust holes are arranged in the nose mask, a water absorption pad is arranged on a lower portion of an inner side of the nose mask, and a nose clip II for controlling the nose clip I is arranged on the lower portion of the nose mask. The dustproof device has the advantages of simple and reasonable structure and diversified and practical functions, the dustproof problem of workers in a high-dust-concentration place is effectively solved, the current industry blank is filled, and the device has good social and economic benefits.

The invention discloses an ultrasonic cleaning treatment method for manufacturing an optical protective lens, and relates to the technical field of metallurgical processing. An ultrasonic cleaning treatment device for manufacturing the optical protective lens is adopted to match the ultrasonic cleaning treatment method for manufacturing the optical protective lens. The ultrasonic cleaning treatment device for manufacturing the optical protective lens comprises a cleaning machine box body, and an ultrasonic cleaning pool with an upward opening is formed in the top end of the cleaning machine box body. According to the method, by reciprocating micro-motion of the optical protective lens in the cleaning pool, ultrasonic waves emitted by an ultrasonic generating device in the ultrasonic cleaning pool is convenient to act on the surface of the optical protective lens at different angles, by reciprocating micro-motion of the optical protective lens in the cleaning pool, in the micro-motion process of the optical protective lens, cleaning liquid impacts stains adhered to the optical protective lens through the resistance of the cleaning liquid, and the stains on the optical protective lens are cleaned.

The invention discloses a 3D imaging laser radar for preventing signal interference, which includes a laser transmitter, a laser signal processing device and a base. The left end of the transmitter is equipped with a high-transparency protective lens, which is embedded on the laser transmitter, and a convex lens is provided between the high-transparency protective lens and the laser generator, and the convex lens is clamped between the laser generator and the high-transparency protective lens. This kind of anti-signal interference 3D imaging laser radar has a copper-aluminum alloy shell at the end of the laser transmitter, and the copper-aluminum alloy shell is set in a "cylindrical" shape, and the metal can effectively shield the interference between signals. The anti-signal interference 3D imaging laser radar has a battery inside, which can make the device work without the power line, which meets the needs of radar field work and realizes its portability.

The invention provides a display device, which includes a protective lens, a frame, an adhesive glue, a solvent dripping hole and a solvent conducting groove. Adhesive glue is arranged between the protective lens and the frame. The solvent dripping hole is opened in the frame. The solvent conducting groove is arranged adjacent to the junction of the frame and the adhesive, and communicates with the solvent dripping hole. The above-mentioned solvent conduction groove extends substantially along the length direction of the frame. By adopting the invention, the frame and the protective lens can be better disassembled, and the difficulty of cleaning can be reduced.

The invention relates to a preparation method of laser blinding protective lenses, and belongs to the technical field of functional materials. Graphene-like two-dimensional material molybdenum disulfide nanosheets are used as basal bodies; as the basal bodies have the advantages of high plane internal carrier mobility, small indirect band gap, high fluorescence quantum yield, large surface area, excellent photoelectric chemical stability and the like, ternary quantum dots are synthesized in layer gaps thereof; through a barrier effect of molybdenum disulfide and a synergistic effect with the quantum dots, nonlinear optical amplitude limiting materials with excellent dispersibility, high stability and difficult deterioration are obtained; and through a surface effect of a quantum effect, aquantum size effect, a quantum confinement effect, a macroscopic quantum tunneling effect and the like, increment of polarizability and increment of absorption coefficients are shown, higher nonlinearoptical parameters are achieved, and reliable and effective protecting methods can be provided to laser operators.

The invention discloses a polishing device for hardware lock machining. The polishing device comprises a decorative body, a base is arranged at the bottom of the decorative body, a power switch is arranged on the outer surface of the decorative body, a double-head motor is arranged in the decorative body, and a driving shaft is rotationally connected with the conveying end of the double-head motor. A grinding wheel is arranged on the outer surface of the driving shaft, when the grinding wheel rubs with a lock in work, the temperature rises to generate sparks, and the outer surface of the grinding wheel is stained with water to lower the temperature and reduce the sparks; a protective cover is arranged at the top of the grinding wheel, protective glasses are arranged on the outer surface of the protective cover, so that the sparks generated in work are stopped from flying around, and the damage to human bodies is avoided; when a lockset is polished, sweeps generated by friction between the grinding wheel and the lockset can burst out, the sweeps can be blocked by the protective cover arranged at the top of the grinding wheel, so that the sweeps fall into a water tank at the bottom of the grinding wheel and are convenient to clean, and low cleaning efficiency is avoided.

The invention discloses a face guard for electric welding. The face guard comprises a protective baffle, wherein the protective baffle has a cambered structure and is provided with protective lenses; the two sides of the protective lenses are connected with legs; side faces of the protective baffle are provided with air holes. According to the invention, the protective baffle of the cambered structure is adopted, and the legs are arranged on the protective baffle, so that a user can use the protective baffle by just wearing the protective baffle like a pair of glasses without holding the protective baffle with a hand, and the protective baffle is very convenient to use; since the protective baffle only shields the front face and the side faces, the face guard has extremely good ventilation property, heat dissipation property and comfort.